Test Method Title
Standard Test Method for Permeability of Rocks by Flowing Air
Reference Number
ASTM D4525
Material
Rock
Test Property
Coefficient of Permeability
Description of Test
This test method is designed to measure the permeability to air of a small sample of rock. By extrapolation, this test method also determines an equivalent of the liquid permeability. This parameter is used to calculate the flow through rock of fluids subjected to a pressure differential.
Number of Test Specimens
3 or more for each orientation
Test Specimen Size
Cylindrical specimens with length between 1.3 and 1.7 times the diameter.
Keywords
Flow and flow rate, permeability, rock